EP 2440744 A1 20120418 - AN INJECTION-BACKFLOW TECHNIQUE FOR MEASURING FRACTURE SURFACE AREA ADJACENT TO A WELLBORE
Title (en)
AN INJECTION-BACKFLOW TECHNIQUE FOR MEASURING FRACTURE SURFACE AREA ADJACENT TO A WELLBORE
Title (de)
EINSPRITZRÜCKFLUSSTECHNIK ZUM MESSEN DES BRUCHOBERFLÄCHENBEREICHS UNMITTELBAR NEBEN EINEM BOHRLOCH
Title (fr)
TECHNIQUE DE RETOUR D'ÉCOULEMENT D'INJECTION POUR MESURER UNE SURFACE DE FRACTURE AU VOISINAGE D'UN PUITS DE FORAGE
Publication
Application
Priority
- US 2010038420 W 20100611
- US 18650709 P 20090612
Abstract (en)
[origin: US2010314105A1] An injection backflow technique for measuring fracture surface area adjacent to a wellbore is disclosed. According to one embodiment, a method comprises measuring an initial temperature profile along the length of a wellbore. A tracer composition is injected into the wellbore at an initial concentration. The tracer composition includes a reactive tracer and a secondary tracer that is less reactive than the reactive tracer. The tracer composition diffuses within subterranean reservoir for a time. A secondary tracer concentration and a reactive tracer concentration are measured as a function of time. A reservoir fracture surface area is calculated using a reservoir fluid flow model.
IPC 8 full level
E21B 47/00 (2012.01)
CPC (source: EP US)
E21B 43/26 (2013.01 - EP US); E21B 47/11 (2020.05 - EP US); E21B 49/008 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
US 2010314105 A1 20101216; US 8162049 B2 20120424; AU 2010259936 A1 20120202; EP 2440744 A1 20120418; WO 2010144872 A1 20101216
DOCDB simple family (application)
US 81414810 A 20100611; AU 2010259936 A 20100611; EP 10786946 A 20100611; US 2010038420 W 20100611